September weather forecastBarrmill, United Kingdom
September
Weather in September
The first month of the autumn, September, is still a mild month in Barrmill, United Kingdom, with an average temperature fluctuating between 14.3°C (57.7°F) and 9.4°C (48.9°F).Temperature
The shift into September finds Barrmill at an average high-temperature of a mild 14.3°C (57.7°F), closely comparable to August's conditions. Barrmill marks an average drop to a frosty 9.4°C (48.9°F) during nighttime in September, following the high of the day.Humidity
January, August through December, with an average relative humidity of 88%, are the most humid months in Barrmill, United Kingdom.Rainfall
In Barrmill, in September, during 18.9 rainfall days, 54mm (2.13") of precipitation is typically accumulated. Throughout the year, in Barrmill, there are 233.5 rainfall days, and 779mm (30.67") of precipitation is accumulated.Snowfall
In Barrmill, snow does not fall in May through November.Daylight
In September, the average length of the day in Barrmill is 12h and 44min.On the first day of September, sunrise is at 6:24 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 6:55 pm BST.
Sunshine
The average sunshine in September in Barrmill, United Kingdom, is 5.8h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The UV index of 3 during September translates into the following guidance:
Take precautions - Protection against sun damage is advised. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Barrmill, United Kingdom
- Average high temperature in September: 14.3°C
The warmest month (with the highest average high temperature) is July (16.6°C).
The month with the lowest average high temperature is January (5.4°C).
- Average low temperature in September: 9.4°C
The month with the highest average low temperature is July (10.4°C).
The coldest month (with the lowest average low temperature) is February (2°C).
Average pressure in September
Barrmill, United Kingdom
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is May (1015.4mbar).
The month with the lowest atmospheric pressure is November (1006.9mbar).
Average wind speed in September
Barrmill, United Kingdom
- Average wind speed in September: 16.5km/h
The windiest month (with the highest average wind speed) is January (21.9km/h).
The calmest months (with the lowest average wind speed) are June and July (13.7km/h).
Average humidity in September
Barrmill, United Kingdom
- Average humidity in September: 88%
The months with the highest relative humidity are January, August, September, October, November and December (88%).
The months with the lowest relative humidity are April and May (83%).
Average rainfall in September
Barrmill, United Kingdom
- Average rainfall in September: 54mm
The wettest month (with the highest rainfall) is August (87mm).
The driest month (with the least rainfall) is April (34mm).
Average rainfall days in September
Barrmill, United Kingdom
- Average rainfall days in September: 18.9 days
The month with the highest number of rainy days is August (22.9 days).
The month with the least rainy days is April (16.6 days).
Average snowfall in September
Barrmill, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (61mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Barrmill, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Barrmill, United Kingdom
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in September: 5h and 48min
The month with the most sunshine is June (Average sunshine: 7h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Barrmill, United Kingdom
- Average sunshine days in September: 8.1 days
The month with the most sunshine days is April (10.9 days).
The month with the least sunshine days is August (5.8 days).
Average UV index in September
Barrmill, United Kingdom
- Average UV index in September: 3
The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Barrmill, United Kingdom
- Average cloud cover in September: 60
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is April (Cloud cover 54).
Average visibility in September
Barrmill, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (9km).
The months with the lowest visibility are July and August (8km).
